Whole numbers

• Both positive and negative numbers can be added, subtracted, multiplied and divided using rules.
• These rules must be applied in a specific order.
• Each digit in a number has a place value, which shows the position of a digit in a number.
• The first few place values are shown in the table.
• Numbers can be written as words using a place value table.
• In the number 52,604, the digit 5 has a value of 50,000 (fifty thousand) and the digit 4 has the value of 4 units (four).
• 68,542 can be broken into 60,000 + 8,000 + 500 + 40 + 2, which is written as sixty-eight thousand, five hundred and forty-two.
• The number five million, seven hundred and twenty-two thousand, six hundred and eight is 5,722,608 in figures.
• Putting a comma after every three digits from the right breaks the number up, making it easier to say or write.